What is "semop failed, errno: 36" ??

Need some help from those who know how to interpret the online log files. Recently, the following is spotted in the online log file, after the server went into ABORT mode and aborted itself. --- online.log begin ------------------- 08:47:20 Process Aborted Abnormally: pid=24884 user=500 us=c12d2cdc flags=101 08:47:20 Process Aborted Abnormally (critical section): pid=24884 user=500 us=c12d2cdc flags=101 08:47:20 INFORMIX-OnLine entering ABORT mode!!! 08:47:21 -- OnLine Aborting -- us=c12d214c, pid=5750, uid=102 08:47:28 INFORMIX OnLine Stopped 08:47:29 semop failed. errno : 36, proc id 24450 --- online.log end ------------------- Of course, the "Process Aborted Abnormally" was caused by mistake, by the administrator killing a process. I only like to know what is the significance of the last line occuring at 08:47:29 about semop error. Thanks. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Calvin Ng email: <calvinng@brel.com.sg> ------------------------------------------------------------------------- [DISCLAIMER] Read at your own risks. The author is not liable for any consequences directly or indirectly involved with reading this mail. This mail MAY NOT be interpreted as those of my employer's. ------------------------------------------------------------------------- This mail is sent with the help of Chameleon TCP/IP for Windows. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=